LocalFree

JavaLens MCP server

pzalutski-pixel/javalens-mcp

Semantic Java analysis via Eclipse JDT: compiler-accurate navigation, refactoring, find references, call hierarchy and code metrics.

46 GitHub stars13 forks1,057 npm downloads / month

Install JavaLens in Claude Code

Claude Code
claude mcp add javalens -- npx -y javalens-mcp
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "javalens": {
      "command": "npx",
      "args": [
        "-y",
        "javalens-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the JavaLens MCP server do?

Semantic Java analysis via Eclipse JDT: compiler-accurate navigation, refactoring, find references, call hierarchy and code metrics.

Is the JavaLens MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does JavaLens run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add JavaLens to Claude Code?

Run: claude mcp add javalens -- npx -y javalens-mcp

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